A chain of beauty salons has recently hired staff who appear to be overqualified for the job. The human resources department checks the average salary of staff with different levels of formal education ranging from 12 to 20 years (see the table on the next page).

a) Draw a scatterplot of the data.

b) Use logarithms to re-express one of the variables in order to make the relationship more linear.

c) Draw a scatterplot of the re-expressed data.

Years of Education After Grade 10                      Average Salary ($)
2........................................................................................................29,105
3........................................................................................................41,239
4........................................................................................................49,870
5........................................................................................................57,200
6........................................................................................................63,280
7........................................................................................................67,985
8........................................................................................................71,345
9........................................................................................................73,455
10......................................................................................................76,255